Home / 20,126.61-30,179.79-6,975.45

Finding the Fourth Proportional to 20,126.61, 30,179.79 and 6,975.45

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Solution

The fourth proportional to 20,126.61, 30,179.79 and 6,975.45 is: 10,459.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.61 : 30,179.79 = 6,975.45 : x
  2. Step 2: Convert to fraction form
    20,126.61/30,179.79 = 6,975.45/x
  3. Step 3: Cross multiply
    20,126.61x = 30,179.79 × 6,975.45
  4. Step 4: Simplify right side
    20,126.61x = 210,517,616.16
  5. Step 5: Solve for x
    x = 210,517,616.16/20,126.61
  6. Step 6: Final answer
    x = 10,459.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.